145460640 has 96 divisors (see below), whose sum is σ = 493468416. Its totient is φ = 35804160.

The previous prime is 145460597. The next prime is 145460647. The reversal of 145460640 is 46064541.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×145460640³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 145460598 and 145460607.

It is not an unprimeable number, because it can be changed into a prime (145460647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5416 + ... + 17895.

It is an arithmetic number, because the mean of its divisors is an integer number (5140296).

Almost surely, 2^145460640 is an apocalyptic number.

145460640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145460640 is an abundant number, since it is smaller than the sum of its proper divisors (348007776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145460640 is a wasteful number, since it uses less digits than its factorization.

145460640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23342 (or 23334 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 145460640 is about 12060.7064469707. The cubic root of 145460640 is about 525.9145239335.

The spelling of 145460640 in words is "one hundred forty-five million, four hundred sixty thousand, six hundred forty".